On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security (CARES) Act was signed into law (P.L. 116-136). The CARES Act includes $3.5 billion in supplemental appropriations for the Child Care and Development Block Grant (CCDBG). This report provides an overview of the CCDBG provisions in the CARES Act. Among other things, these provisions address allowable uses and flexibilities of the supplemental funds. The report also includes allocations for the additional $3.5 billion in CCDBG appropriations. The CCDBG Act (42 U.S.C. §§9858 et seq.) is the main federal law supporting child care programs for low-income working families. The CCDBG is administered by the U.S. Department of Health and Human Services (HHS). HHS allocates CCDBG funds to states, territories, and tribes according to a statutory formula. In addition, certain funds may be reserved for other activities, such as technical assistance and research. State, territory, and tribal lead agencies submit CCDBG plans to HHS every three years describing how their child care programs will operate. CCDBG funds are used to subsidize the cost of child care for eligible children of low-income working parents. Funds are also used to support activities to improve the quality of child care and for certain other costs.